Heddle frame for looms



ct. 1, 1940. J, 'ZURCHER ET AL 2,216,682

HEDDLE FRAME yFOR LOMS v Filed July '1. 1959 atented 9ct. 1, 1940 UNITED STATES PATENT OFFICE HEDDLE FRAME FOB LOOMS Application July 7, 1939, Serial No. 283,310 In Germany May 25, 1939 'I'he invention relates to a heddle frame for looms. The main object of the invention consists in the provision of a rigid heddle frame which possesses the necessary stability and which is light of weight.

A further object of the invention consists in the construction of the parts of the heddle frame in such a manner that the frame can be assembled quickly and thus inexpensively from standu ardised elements.

We attain these and other objects by making the staves or bars of the heddle frame of rolled or drawn metal, for instance light metal. A

u special cross-section is given to the staves, which ensures great strength and a minimum of weight.

The invention also extends to the particular construction of the shaft staves with guide rails on the inner edge of which there are movably arranged throughout the carriers for the assembly rails for the healds and on the outer edge thereof the suspension hooks for the shaft of healds. The peculiar profiling of these shaft staves constitutes, as hereinafter described. a particular feature of the invention.

The shaft of healds is illustrated diagrammatically in the accompanying drawing, wherein:

Fig. l is a front view of a shaft of healds and Fig. 2 is a. corner thereof to a larger scale,

y Fig. 3 is a cross section through the stave and a side view of the hooks and slides cooperating therewith,

Figs. 4 to 6 show the connection of the corner to shafts of healds of different constructions known per se and for healds of different lengths.

Figs. '7 and 8 show by way of example crosssection of shaft staves.

Fig. 9 is a cross section through the stave.

The heddle frame shown in Fig. 1 is provided with two staves i, 2, preferably consisting of light metal. The staves 2 are sections of hollow rolled or drawn proiile rails. They all agree in their` dimensions. On the inner longitudinal edge the staves I, 2 are provided with brackets 3 of T- shaped cross-section. On these brackets 3 are a5 provided slides 4 which are transversely movable, these slides carrying the assembly rails 5 on which the heddles 6 are slidably mounted. Each stave I, 2 is provided on its outer longitudinal edge with a T-shaped bracket S. On both staves l and 2 there are provided at least two transversely movable supporting hooks and/ or lowering hooks' The side supports I2 (Fig. 2) are connected with the staves I and 2 by means of studs il which t tightly into the hollow space Il of the staves I, 2. An extension II) of said stud I I fits into a recess of the support I2. Both parts I0 and I I may be fastened to the staves and to the supports by rivets II', or screws or the like. The side supports I2 may consist of profiled or even fiat metal. In most cases also woodfmay be 5 used with advantage. The parts I, 2 and I2, together with the connecting pieces III, II produce a very rigid frame which does not bend during normal operations and which also cannot be distorted. The brackets 3 are compara 10 tively high so that the slides 4, of which the ends are hook-shaped are provided with a rigid track 30. As the running rails 4', 4" of the slide 4 extend on edge on the guide bracket 3, the slide 4 takes up very little space, whereby 1 the shaft staves I, 2 may be made comparatively thin.

The cross-section of the staves I, 2 may also be modified as is shown in Fig. 9. The side walls of the central part of the staves are slightly 20 bent. A stave with such a cross section and of light metal is very strong.

In Figs 4 to 8 there is shown that the various side supports can be secured to the staves In the form of construction in Fig. 4 each side support is formed of a metal profile rod I1. This is provided with slots for the reception of the assembly rails 5.

Fig. 5 shows the securing of the side support 30 I1 to the stave I by means of a bar 2I with screwed ends and with nuts thereon. In Fig. 6 the assembly rail 5 rests in a tongue 22 secured to the side support 23. The latter is connected to the staves by any known means. 35

In the construction in Fig. 7 there is provided the known wire 25 adapted to guide the heddles. Otherwise this construction corresponds with that in Fig. 6.

Fig. 8 shows a construction in which the outer o normal side support 21 is reinforced by a fiat inner support 24. To this double support is secured the suspension 28. By these suspensions 28 the heddle frame may be moved up and down.

The side supports which are secured to the 5 interconnecting pieces III, II by rivets can be released easily and replaced by longer or shorter ones. Thus existing frames can be converted for other heddle lengths and the frame may be provided with other side supports. In spite of w great stability the frame only takes up little space.

The slides 4 shown may also be used in combination with. wood bars and riveted T-bars. The end 35 of the slide 4, as shown in Fig. 1, is u bent to correspond to the shape o! the ends of the nat assembly rails l. The parts o! the end of the slide Si correspond in shape with the known shape of the eyes Il oi' the iiat wire heddle l. By this construction it is possible for the heddles bearing directly against the slide to extend at a smaller distance apart.

What we claim is:

1. A heddle trame for looms comprising two staves connected by side supports and rigid corner plates, each of said staves comprising a drawn-tubular ilat bar element from each longitudinal edge of which extends a bracket of T-shaped cross section integrally formed with the bar element and comprising a. web and a head, the outer T-shaped brackets being designed to receive frame supporting hooks, and the inner T-shaped brackets being designed to receive slides for carrying assembly rails on which the heddles may be slidably mounted.

2. A heddle frame composed ot a top stave, a

bottom stave and side supports, said staves each being formed of a ilat hollow body of thin metal continuous in cross section and formed along its top and bottom edges with integral webs and heads defining Tshaped-incross'section brackets, studs inserted into the ends of said staves and having extensions that tit in recesses in said side supports, and means rigidly securing said studs and extensions respectively to said staves and side supports, thereby constituting a light, strong i'rame.l

acides:

3. A heddle frame composed oi' a top stave, a .bottom stave and side supports, said staves each being formed of a nat hollow body of thin metal continuous in cross section and formed along its top and bottom edges with integral webs and heads denning T-shaped-in-cross-section brackets. studs inserted into the ends of said staven and having' extensions that iit in recesses in said side supports, and means rigidly securing said studs and extensions respectively to said staves and side supports, thereby constituting a light, strong frame, combined with frame supporting hooks having portions to grip the outer T-shaped brackets with sliding contact, and slides on the inner T-shaped brackets, and dat assembly rails carried by said slides on which assembly rails heddles are slidably mounted.

4. A heddle frame composed o! a top stave, a bottom stave and side supports( said staves each being formed of a at hollow body of thin metal continuous in cross section and formed along its top and bottom edges with integral singlethickness-of-metal webs and heads deilning T- shaped-in-cross-section brackets, studs inserted into the ends of said staves and having extensions that fit in recesses in said side supports, and means rigidly securing said studs and extensions respectively to said staves and side supports, thereby constituting a light, strong frame.

Josnr' ZRCHER.' AIBERT Bmcms'ronr'm. 

